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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1953397Generated: October 31, 2026

tert-Butyl L-valinate → (S)-2-(phenoxathiine-2-sulfonylamino)-succinamic acid

https://huagongshe.com/reaction/1953397

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl L-valinateHCID 114626—
ReactantL-Asparagine tert-butyl esterHCID 6995006—
ReactantThianthrene-2-sulfonyl chlorideHCID 15487617—
ReactantPhenoxathiine-2-sulfonyl chlorideHCID 15487618—
Product(S)-2-(phenoxathiine-2-sulfonylamino)-succinamic acidHCID 53837821—

Reaction Steps

When in the procedure of Example 1, Step (b), thianthrene-2-sulfonyl chloride is replaced by phenoxathiine-2-sulfonyl chloride and (L)-valine-t-butyl ester is replaced with (L)-asparagine-t-butyl ester, (S)-2-(phenoxathiine-2-sulfonylamino)-succinamic acid is obtained; mp 165-175° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06117869
Source datasetuspto-grants-2000_09
ORD IDord-285344e6aa9449ab895b66fb7d9f9060
Source noteuspto-grants-2000_09